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Balance Sheets (Current Period Unaudited) - USD ($)
Mar. 29, 2025
Dec. 28, 2024
Current assets:    
Cash and cash equivalents $ 1,929,919 $ 3,280,687
Marketable securities, at fair value 1,039,714 1,031,001
Inventories, net 4,812,833 4,331,066
Prepaid expenses and other current assets 389,764 480,986
Total current assets 14,685,355 14,159,016
Property and equipment:    
Production equipment 10,439,670 10,382,379
Furniture and office equipment 891,921 891,921
Leasehold improvements 997,830 997,830
Total cost 12,329,421 12,272,130
Accumulated depreciation and amortization (10,542,494) (10,377,756)
Construction in progress 144,653 108,874
Net property and equipment 1,931,580 2,003,248
Right-of-use lease asset 147,000 186,000
Deferred taxes, net 2,444,973 2,528,682
Total Assets 19,208,908 18,876,946
Current liabilities:    
Note payable, current portion 0 8,130
Accounts payable 3,135,552 3,053,712
Accrued expenses 1,070,932 913,279
Deferred revenue 108,080 172,429
Lease liability, current portion 147,000 160,000
Total current liabilities 4,461,564 4,307,550
Deferred revenue – long term 31,277 31,277
Long term lease liability 0 26,000
Total liabilities 4,492,841 4,364,827
Stockholders’ equity:    
Common stock, $0.01 par value, authorized 20,000,000 shares; issued 14,661,487 shares; outstanding 14,525,960 shares at each March 29, 2025 and December 28, 2024 146,615 146,615
Additional paid-in capital 40,702,573 40,580,387
Accumulated other comprehensive income 1,300 15,500
Accumulated deficit (25,794,283) (25,890,245)
Less cost of 135,527 common shares repurchased at each March 29, 2025 and December 28, 2024 (340,138) (340,138)
Total stockholders’ equity 14,716,067 14,512,119
Total liabilities and stockholders’ equity 19,208,908 18,876,946
Trade Accounts Receivable [Member]    
Current assets:    
Accounts receivable 6,302,650 4,858,208
Other Receivables [Member]    
Current assets:    
Accounts receivable $ 210,475 $ 177,068